The long-awaited prequel, and a gripping thriller featuring a young Woman Detective Constable Liberty Rock in London's 1970s.

Faced with having to tackle sexism, corruption, and male domination in the police force, Liberty refuses to back down as she is teamed up with WDI Angie McDonald to deal with the horrific murder of a female hitchhiker. This discovery leads to a cat and mouse chase with the killers, nicknamed 'Bonnie and Clyde', who seem to be enjoying each kill even more than their last.

Liberty needs to learn fast as the bodies start to pile up, but what could the cost of failure possibly bring?

Combining his usual mix of violence with a subtle hint of humour, Stephen Harding's remarkable character faces another uphill battle as this strong female protagonist sets out to prove herself and make her mark.